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1 | /****************************************************************************** |
1 | /****************************************************************************** |
2 | * |
2 | * |
3 | * Module Name: exstorob - AML Interpreter object store support, store to object |
3 | * Module Name: exstorob - AML Interpreter object store support, store to object |
4 | * |
4 | * |
5 | *****************************************************************************/ |
5 | *****************************************************************************/ |
6 | 6 | ||
7 | /****************************************************************************** |
7 | /****************************************************************************** |
8 | * |
8 | * |
9 | * 1. Copyright Notice |
9 | * 1. Copyright Notice |
10 | * |
10 | * |
11 | * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp. |
11 | * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp. |
12 | * All rights reserved. |
12 | * All rights reserved. |
13 | * |
13 | * |
14 | * 2. License |
14 | * 2. License |
15 | * |
15 | * |
16 | * 2.1. This is your license from Intel Corp. under its intellectual property |
16 | * 2.1. This is your license from Intel Corp. under its intellectual property |
17 | * rights. You may have additional license terms from the party that provided |
17 | * rights. You may have additional license terms from the party that provided |
18 | * you this software, covering your right to use that party's intellectual |
18 | * you this software, covering your right to use that party's intellectual |
19 | * property rights. |
19 | * property rights. |
20 | * |
20 | * |
21 | * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a |
21 | * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a |
22 | * copy of the source code appearing in this file ("Covered Code") an |
22 | * copy of the source code appearing in this file ("Covered Code") an |
23 | * irrevocable, perpetual, worldwide license under Intel's copyrights in the |
23 | * irrevocable, perpetual, worldwide license under Intel's copyrights in the |
24 | * base code distributed originally by Intel ("Original Intel Code") to copy, |
24 | * base code distributed originally by Intel ("Original Intel Code") to copy, |
25 | * make derivatives, distribute, use and display any portion of the Covered |
25 | * make derivatives, distribute, use and display any portion of the Covered |
26 | * Code in any form, with the right to sublicense such rights; and |
26 | * Code in any form, with the right to sublicense such rights; and |
27 | * |
27 | * |
28 | * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent |
28 | * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent |
29 | * license (with the right to sublicense), under only those claims of Intel |
29 | * license (with the right to sublicense), under only those claims of Intel |
30 | * patents that are infringed by the Original Intel Code, to make, use, sell, |
30 | * patents that are infringed by the Original Intel Code, to make, use, sell, |
31 | * offer to sell, and import the Covered Code and derivative works thereof |
31 | * offer to sell, and import the Covered Code and derivative works thereof |
32 | * solely to the minimum extent necessary to exercise the above copyright |
32 | * solely to the minimum extent necessary to exercise the above copyright |
33 | * license, and in no event shall the patent license extend to any additions |
33 | * license, and in no event shall the patent license extend to any additions |
34 | * to or modifications of the Original Intel Code. No other license or right |
34 | * to or modifications of the Original Intel Code. No other license or right |
35 | * is granted directly or by implication, estoppel or otherwise; |
35 | * is granted directly or by implication, estoppel or otherwise; |
36 | * |
36 | * |
37 | * The above copyright and patent license is granted only if the following |
37 | * The above copyright and patent license is granted only if the following |
38 | * conditions are met: |
38 | * conditions are met: |
39 | * |
39 | * |
40 | * 3. Conditions |
40 | * 3. Conditions |
41 | * |
41 | * |
42 | * 3.1. Redistribution of Source with Rights to Further Distribute Source. |
42 | * 3.1. Redistribution of Source with Rights to Further Distribute Source. |
43 | * Redistribution of source code of any substantial portion of the Covered |
43 | * Redistribution of source code of any substantial portion of the Covered |
44 | * Code or modification with rights to further distribute source must include |
44 | * Code or modification with rights to further distribute source must include |
45 | * the above Copyright Notice, the above License, this list of Conditions, |
45 | * the above Copyright Notice, the above License, this list of Conditions, |
46 | * and the following Disclaimer and Export Compliance provision. In addition, |
46 | * and the following Disclaimer and Export Compliance provision. In addition, |
47 | * Licensee must cause all Covered Code to which Licensee contributes to |
47 | * Licensee must cause all Covered Code to which Licensee contributes to |
48 | * contain a file documenting the changes Licensee made to create that Covered |
48 | * contain a file documenting the changes Licensee made to create that Covered |
49 | * Code and the date of any change. Licensee must include in that file the |
49 | * Code and the date of any change. Licensee must include in that file the |
50 | * documentation of any changes made by any predecessor Licensee. Licensee |
50 | * documentation of any changes made by any predecessor Licensee. Licensee |
51 | * must include a prominent statement that the modification is derived, |
51 | * must include a prominent statement that the modification is derived, |
52 | * directly or indirectly, from Original Intel Code. |
52 | * directly or indirectly, from Original Intel Code. |
53 | * |
53 | * |
54 | * 3.2. Redistribution of Source with no Rights to Further Distribute Source. |
54 | * 3.2. Redistribution of Source with no Rights to Further Distribute Source. |
55 | * Redistribution of source code of any substantial portion of the Covered |
55 | * Redistribution of source code of any substantial portion of the Covered |
56 | * Code or modification without rights to further distribute source must |
56 | * Code or modification without rights to further distribute source must |
57 | * include the following Disclaimer and Export Compliance provision in the |
57 | * include the following Disclaimer and Export Compliance provision in the |
58 | * documentation and/or other materials provided with distribution. In |
58 | * documentation and/or other materials provided with distribution. In |
59 | * addition, Licensee may not authorize further sublicense of source of any |
59 | * addition, Licensee may not authorize further sublicense of source of any |
60 | * portion of the Covered Code, and must include terms to the effect that the |
60 | * portion of the Covered Code, and must include terms to the effect that the |
61 | * license from Licensee to its licensee is limited to the intellectual |
61 | * license from Licensee to its licensee is limited to the intellectual |
62 | * property embodied in the software Licensee provides to its licensee, and |
62 | * property embodied in the software Licensee provides to its licensee, and |
63 | * not to intellectual property embodied in modifications its licensee may |
63 | * not to intellectual property embodied in modifications its licensee may |
64 | * make. |
64 | * make. |
65 | * |
65 | * |
66 | * 3.3. Redistribution of Executable. Redistribution in executable form of any |
66 | * 3.3. Redistribution of Executable. Redistribution in executable form of any |
67 | * substantial portion of the Covered Code or modification must reproduce the |
67 | * substantial portion of the Covered Code or modification must reproduce the |
68 | * above Copyright Notice, and the following Disclaimer and Export Compliance |
68 | * above Copyright Notice, and the following Disclaimer and Export Compliance |
69 | * provision in the documentation and/or other materials provided with the |
69 | * provision in the documentation and/or other materials provided with the |
70 | * distribution. |
70 | * distribution. |
71 | * |
71 | * |
72 | * 3.4. Intel retains all right, title, and interest in and to the Original |
72 | * 3.4. Intel retains all right, title, and interest in and to the Original |
73 | * Intel Code. |
73 | * Intel Code. |
74 | * |
74 | * |
75 | * 3.5. Neither the name Intel nor any other trademark owned or controlled by |
75 | * 3.5. Neither the name Intel nor any other trademark owned or controlled by |
76 | * Intel shall be used in advertising or otherwise to promote the sale, use or |
76 | * Intel shall be used in advertising or otherwise to promote the sale, use or |
77 | * other dealings in products derived from or relating to the Covered Code |
77 | * other dealings in products derived from or relating to the Covered Code |
78 | * without prior written authorization from Intel. |
78 | * without prior written authorization from Intel. |
79 | * |
79 | * |
80 | * 4. Disclaimer and Export Compliance |
80 | * 4. Disclaimer and Export Compliance |
81 | * |
81 | * |
82 | * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED |
82 | * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED |
83 | * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE |
83 | * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE |
84 | * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, |
84 | * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, |
85 | * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY |
85 | * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY |
86 | * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY |
86 | * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY |
87 | * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A |
87 | * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A |
88 | * PARTICULAR PURPOSE. |
88 | * PARTICULAR PURPOSE. |
89 | * |
89 | * |
90 | * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES |
90 | * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES |
91 | * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR |
91 | * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR |
92 | * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, |
92 | * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, |
93 | * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY |
93 | * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY |
94 | * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL |
94 | * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL |
95 | * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS |
95 | * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS |
96 | * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY |
96 | * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY |
97 | * LIMITED REMEDY. |
97 | * LIMITED REMEDY. |
98 | * |
98 | * |
99 | * 4.3. Licensee shall not export, either directly or indirectly, any of this |
99 | * 4.3. Licensee shall not export, either directly or indirectly, any of this |
100 | * software or system incorporating such software without first obtaining any |
100 | * software or system incorporating such software without first obtaining any |
101 | * required license or other approval from the U. S. Department of Commerce or |
101 | * required license or other approval from the U. S. Department of Commerce or |
102 | * any other agency or department of the United States Government. In the |
102 | * any other agency or department of the United States Government. In the |
103 | * event Licensee exports any such software from the United States or |
103 | * event Licensee exports any such software from the United States or |
104 | * re-exports any such software from a foreign destination, Licensee shall |
104 | * re-exports any such software from a foreign destination, Licensee shall |
105 | * ensure that the distribution and export/re-export of the software is in |
105 | * ensure that the distribution and export/re-export of the software is in |
106 | * compliance with all laws, regulations, orders, or other restrictions of the |
106 | * compliance with all laws, regulations, orders, or other restrictions of the |
107 | * U.S. Export Administration Regulations. Licensee agrees that neither it nor |
107 | * U.S. Export Administration Regulations. Licensee agrees that neither it nor |
108 | * any of its subsidiaries will export/re-export any technical data, process, |
108 | * any of its subsidiaries will export/re-export any technical data, process, |
109 | * software, or service, directly or indirectly, to any country for which the |
109 | * software, or service, directly or indirectly, to any country for which the |
110 | * United States government or any agency thereof requires an export license, |
110 | * United States government or any agency thereof requires an export license, |
111 | * other governmental approval, or letter of assurance, without first obtaining |
111 | * other governmental approval, or letter of assurance, without first obtaining |
112 | * such license, approval or letter. |
112 | * such license, approval or letter. |
113 | * |
113 | * |
114 | *****************************************************************************/ |
114 | *****************************************************************************/ |
115 | 115 | ||
116 | #define __EXSTOROB_C__ |
116 | #define __EXSTOROB_C__ |
117 | 117 | ||
118 | #include "acpi.h" |
118 | #include "acpi.h" |
119 | #include "accommon.h" |
119 | #include "accommon.h" |
120 | #include "acinterp.h" |
120 | #include "acinterp.h" |
121 | 121 | ||
122 | 122 | ||
123 | #define _COMPONENT ACPI_EXECUTER |
123 | #define _COMPONENT ACPI_EXECUTER |
124 | ACPI_MODULE_NAME ("exstorob") |
124 | ACPI_MODULE_NAME ("exstorob") |
125 | 125 | ||
126 | 126 | ||
127 | /******************************************************************************* |
127 | /******************************************************************************* |
128 | * |
128 | * |
129 | * FUNCTION: AcpiExStoreBufferToBuffer |
129 | * FUNCTION: AcpiExStoreBufferToBuffer |
130 | * |
130 | * |
131 | * PARAMETERS: SourceDesc - Source object to copy |
131 | * PARAMETERS: SourceDesc - Source object to copy |
132 | * TargetDesc - Destination object of the copy |
132 | * TargetDesc - Destination object of the copy |
133 | * |
133 | * |
134 | * RETURN: Status |
134 | * RETURN: Status |
135 | * |
135 | * |
136 | * DESCRIPTION: Copy a buffer object to another buffer object. |
136 | * DESCRIPTION: Copy a buffer object to another buffer object. |
137 | * |
137 | * |
138 | ******************************************************************************/ |
138 | ******************************************************************************/ |
139 | 139 | ||
140 | ACPI_STATUS |
140 | ACPI_STATUS |
141 | AcpiExStoreBufferToBuffer ( |
141 | AcpiExStoreBufferToBuffer ( |
142 | ACPI_OPERAND_OBJECT *SourceDesc, |
142 | ACPI_OPERAND_OBJECT *SourceDesc, |
143 | ACPI_OPERAND_OBJECT *TargetDesc) |
143 | ACPI_OPERAND_OBJECT *TargetDesc) |
144 | { |
144 | { |
145 | UINT32 Length; |
145 | UINT32 Length; |
146 | UINT8 *Buffer; |
146 | UINT8 *Buffer; |
147 | 147 | ||
148 | 148 | ||
149 | ACPI_FUNCTION_TRACE_PTR (ExStoreBufferToBuffer, SourceDesc); |
149 | ACPI_FUNCTION_TRACE_PTR (ExStoreBufferToBuffer, SourceDesc); |
150 | 150 | ||
151 | 151 | ||
152 | /* If Source and Target are the same, just return */ |
152 | /* If Source and Target are the same, just return */ |
153 | 153 | ||
154 | if (SourceDesc == TargetDesc) |
154 | if (SourceDesc == TargetDesc) |
155 | { |
155 | { |
156 | return_ACPI_STATUS (AE_OK); |
156 | return_ACPI_STATUS (AE_OK); |
157 | } |
157 | } |
158 | 158 | ||
159 | /* We know that SourceDesc is a buffer by now */ |
159 | /* We know that SourceDesc is a buffer by now */ |
160 | 160 | ||
161 | Buffer = ACPI_CAST_PTR (UINT8, SourceDesc->Buffer.Pointer); |
161 | Buffer = ACPI_CAST_PTR (UINT8, SourceDesc->Buffer.Pointer); |
162 | Length = SourceDesc->Buffer.Length; |
162 | Length = SourceDesc->Buffer.Length; |
163 | 163 | ||
164 | /* |
164 | /* |
165 | * If target is a buffer of length zero or is a static buffer, |
165 | * If target is a buffer of length zero or is a static buffer, |
166 | * allocate a new buffer of the proper length |
166 | * allocate a new buffer of the proper length |
167 | */ |
167 | */ |
168 | if ((TargetDesc->Buffer.Length == 0) || |
168 | if ((TargetDesc->Buffer.Length == 0) || |
169 | (TargetDesc->Common.Flags & AOPOBJ_STATIC_POINTER)) |
169 | (TargetDesc->Common.Flags & AOPOBJ_STATIC_POINTER)) |
170 | { |
170 | { |
171 | TargetDesc->Buffer.Pointer = ACPI_ALLOCATE (Length); |
171 | TargetDesc->Buffer.Pointer = ACPI_ALLOCATE (Length); |
172 | if (!TargetDesc->Buffer.Pointer) |
172 | if (!TargetDesc->Buffer.Pointer) |
173 | { |
173 | { |
174 | return_ACPI_STATUS (AE_NO_MEMORY); |
174 | return_ACPI_STATUS (AE_NO_MEMORY); |
175 | } |
175 | } |
176 | 176 | ||
177 | TargetDesc->Buffer.Length = Length; |
177 | TargetDesc->Buffer.Length = Length; |
178 | } |
178 | } |
179 | 179 | ||
180 | /* Copy source buffer to target buffer */ |
180 | /* Copy source buffer to target buffer */ |
181 | 181 | ||
182 | if (Length <= TargetDesc->Buffer.Length) |
182 | if (Length <= TargetDesc->Buffer.Length) |
183 | { |
183 | { |
184 | /* Clear existing buffer and copy in the new one */ |
184 | /* Clear existing buffer and copy in the new one */ |
185 | 185 | ||
186 | ACPI_MEMSET (TargetDesc->Buffer.Pointer, 0, TargetDesc->Buffer.Length); |
186 | ACPI_MEMSET (TargetDesc->Buffer.Pointer, 0, TargetDesc->Buffer.Length); |
187 | ACPI_MEMCPY (TargetDesc->Buffer.Pointer, Buffer, Length); |
187 | ACPI_MEMCPY (TargetDesc->Buffer.Pointer, Buffer, Length); |
188 | 188 | ||
189 | #ifdef ACPI_OBSOLETE_BEHAVIOR |
189 | #ifdef ACPI_OBSOLETE_BEHAVIOR |
190 | /* |
190 | /* |
191 | * NOTE: ACPI versions up to 3.0 specified that the buffer must be |
191 | * NOTE: ACPI versions up to 3.0 specified that the buffer must be |
192 | * truncated if the string is smaller than the buffer. However, "other" |
192 | * truncated if the string is smaller than the buffer. However, "other" |
193 | * implementations of ACPI never did this and thus became the defacto |
193 | * implementations of ACPI never did this and thus became the defacto |
194 | * standard. ACPI 3.0A changes this behavior such that the buffer |
194 | * standard. ACPI 3.0A changes this behavior such that the buffer |
195 | * is no longer truncated. |
195 | * is no longer truncated. |
196 | */ |
196 | */ |
197 | 197 | ||
198 | /* |
198 | /* |
199 | * OBSOLETE BEHAVIOR: |
199 | * OBSOLETE BEHAVIOR: |
200 | * If the original source was a string, we must truncate the buffer, |
200 | * If the original source was a string, we must truncate the buffer, |
201 | * according to the ACPI spec. Integer-to-Buffer and Buffer-to-Buffer |
201 | * according to the ACPI spec. Integer-to-Buffer and Buffer-to-Buffer |
202 | * copy must not truncate the original buffer. |
202 | * copy must not truncate the original buffer. |
203 | */ |
203 | */ |
204 | if (OriginalSrcType == ACPI_TYPE_STRING) |
204 | if (OriginalSrcType == ACPI_TYPE_STRING) |
205 | { |
205 | { |
206 | /* Set the new length of the target */ |
206 | /* Set the new length of the target */ |
207 | 207 | ||
208 | TargetDesc->Buffer.Length = Length; |
208 | TargetDesc->Buffer.Length = Length; |
209 | } |
209 | } |
210 | #endif |
210 | #endif |
211 | } |
211 | } |
212 | else |
212 | else |
213 | { |
213 | { |
214 | /* Truncate the source, copy only what will fit */ |
214 | /* Truncate the source, copy only what will fit */ |
215 | 215 | ||
216 | ACPI_MEMCPY (TargetDesc->Buffer.Pointer, Buffer, |
216 | ACPI_MEMCPY (TargetDesc->Buffer.Pointer, Buffer, |
217 | TargetDesc->Buffer.Length); |
217 | TargetDesc->Buffer.Length); |
218 | 218 | ||
219 | ACPI_DEBUG_PRINT ((ACPI_DB_INFO, |
219 | ACPI_DEBUG_PRINT ((ACPI_DB_INFO, |
220 | "Truncating source buffer from %X to %X\n", |
220 | "Truncating source buffer from %X to %X\n", |
221 | Length, TargetDesc->Buffer.Length)); |
221 | Length, TargetDesc->Buffer.Length)); |
222 | } |
222 | } |
223 | 223 | ||
224 | /* Copy flags */ |
224 | /* Copy flags */ |
225 | 225 | ||
226 | TargetDesc->Buffer.Flags = SourceDesc->Buffer.Flags; |
226 | TargetDesc->Buffer.Flags = SourceDesc->Buffer.Flags; |
227 | TargetDesc->Common.Flags &= ~AOPOBJ_STATIC_POINTER; |
227 | TargetDesc->Common.Flags &= ~AOPOBJ_STATIC_POINTER; |
228 | return_ACPI_STATUS (AE_OK); |
228 | return_ACPI_STATUS (AE_OK); |
229 | } |
229 | } |
230 | 230 | ||
231 | 231 | ||
232 | /******************************************************************************* |
232 | /******************************************************************************* |
233 | * |
233 | * |
234 | * FUNCTION: AcpiExStoreStringToString |
234 | * FUNCTION: AcpiExStoreStringToString |
235 | * |
235 | * |
236 | * PARAMETERS: SourceDesc - Source object to copy |
236 | * PARAMETERS: SourceDesc - Source object to copy |
237 | * TargetDesc - Destination object of the copy |
237 | * TargetDesc - Destination object of the copy |
238 | * |
238 | * |
239 | * RETURN: Status |
239 | * RETURN: Status |
240 | * |
240 | * |
241 | * DESCRIPTION: Copy a String object to another String object |
241 | * DESCRIPTION: Copy a String object to another String object |
242 | * |
242 | * |
243 | ******************************************************************************/ |
243 | ******************************************************************************/ |
244 | 244 | ||
245 | ACPI_STATUS |
245 | ACPI_STATUS |
246 | AcpiExStoreStringToString ( |
246 | AcpiExStoreStringToString ( |
247 | ACPI_OPERAND_OBJECT *SourceDesc, |
247 | ACPI_OPERAND_OBJECT *SourceDesc, |
248 | ACPI_OPERAND_OBJECT *TargetDesc) |
248 | ACPI_OPERAND_OBJECT *TargetDesc) |
249 | { |
249 | { |
250 | UINT32 Length; |
250 | UINT32 Length; |
251 | UINT8 *Buffer; |
251 | UINT8 *Buffer; |
252 | 252 | ||
253 | 253 | ||
254 | ACPI_FUNCTION_TRACE_PTR (ExStoreStringToString, SourceDesc); |
254 | ACPI_FUNCTION_TRACE_PTR (ExStoreStringToString, SourceDesc); |
255 | 255 | ||
256 | 256 | ||
257 | /* If Source and Target are the same, just return */ |
257 | /* If Source and Target are the same, just return */ |
258 | 258 | ||
259 | if (SourceDesc == TargetDesc) |
259 | if (SourceDesc == TargetDesc) |
260 | { |
260 | { |
261 | return_ACPI_STATUS (AE_OK); |
261 | return_ACPI_STATUS (AE_OK); |
262 | } |
262 | } |
263 | 263 | ||
264 | /* We know that SourceDesc is a string by now */ |
264 | /* We know that SourceDesc is a string by now */ |
265 | 265 | ||
266 | Buffer = ACPI_CAST_PTR (UINT8, SourceDesc->String.Pointer); |
266 | Buffer = ACPI_CAST_PTR (UINT8, SourceDesc->String.Pointer); |
267 | Length = SourceDesc->String.Length; |
267 | Length = SourceDesc->String.Length; |
268 | 268 | ||
269 | /* |
269 | /* |
270 | * Replace existing string value if it will fit and the string |
270 | * Replace existing string value if it will fit and the string |
271 | * pointer is not a static pointer (part of an ACPI table) |
271 | * pointer is not a static pointer (part of an ACPI table) |
272 | */ |
272 | */ |
273 | if ((Length < TargetDesc->String.Length) && |
273 | if ((Length < TargetDesc->String.Length) && |
274 | (!(TargetDesc->Common.Flags & AOPOBJ_STATIC_POINTER))) |
274 | (!(TargetDesc->Common.Flags & AOPOBJ_STATIC_POINTER))) |
275 | { |
275 | { |
276 | /* |
276 | /* |
277 | * String will fit in existing non-static buffer. |
277 | * String will fit in existing non-static buffer. |
278 | * Clear old string and copy in the new one |
278 | * Clear old string and copy in the new one |
279 | */ |
279 | */ |
280 | ACPI_MEMSET (TargetDesc->String.Pointer, 0, |
280 | ACPI_MEMSET (TargetDesc->String.Pointer, 0, |
281 | (ACPI_SIZE) TargetDesc->String.Length + 1); |
281 | (ACPI_SIZE) TargetDesc->String.Length + 1); |
282 | ACPI_MEMCPY (TargetDesc->String.Pointer, Buffer, Length); |
282 | ACPI_MEMCPY (TargetDesc->String.Pointer, Buffer, Length); |
283 | } |
283 | } |
284 | else |
284 | else |
285 | { |
285 | { |
286 | /* |
286 | /* |
287 | * Free the current buffer, then allocate a new buffer |
287 | * Free the current buffer, then allocate a new buffer |
288 | * large enough to hold the value |
288 | * large enough to hold the value |
289 | */ |
289 | */ |
290 | if (TargetDesc->String.Pointer && |
290 | if (TargetDesc->String.Pointer && |
291 | (!(TargetDesc->Common.Flags & AOPOBJ_STATIC_POINTER))) |
291 | (!(TargetDesc->Common.Flags & AOPOBJ_STATIC_POINTER))) |
292 | { |
292 | { |
293 | /* Only free if not a pointer into the DSDT */ |
293 | /* Only free if not a pointer into the DSDT */ |
294 | 294 | ||
295 | ACPI_FREE (TargetDesc->String.Pointer); |
295 | ACPI_FREE (TargetDesc->String.Pointer); |
296 | } |
296 | } |
297 | 297 | ||
298 | TargetDesc->String.Pointer = ACPI_ALLOCATE_ZEROED ( |
298 | TargetDesc->String.Pointer = ACPI_ALLOCATE_ZEROED ( |
299 | (ACPI_SIZE) Length + 1); |
299 | (ACPI_SIZE) Length + 1); |
300 | if (!TargetDesc->String.Pointer) |
300 | if (!TargetDesc->String.Pointer) |
301 | { |
301 | { |
302 | return_ACPI_STATUS (AE_NO_MEMORY); |
302 | return_ACPI_STATUS (AE_NO_MEMORY); |
303 | } |
303 | } |
304 | 304 | ||
305 | TargetDesc->Common.Flags &= ~AOPOBJ_STATIC_POINTER; |
305 | TargetDesc->Common.Flags &= ~AOPOBJ_STATIC_POINTER; |
306 | ACPI_MEMCPY (TargetDesc->String.Pointer, Buffer, Length); |
306 | ACPI_MEMCPY (TargetDesc->String.Pointer, Buffer, Length); |
307 | } |
307 | } |
308 | 308 | ||
309 | /* Set the new target length */ |
309 | /* Set the new target length */ |
310 | 310 | ||
311 | TargetDesc->String.Length = Length; |
311 | TargetDesc->String.Length = Length; |
312 | return_ACPI_STATUS (AE_OK); |
312 | return_ACPI_STATUS (AE_OK); |
313 | }>=> |
313 | }>=> |